5
When trouble arises
495
5-2. Steps to take in an emergency
■If the tire pressure warning system is inoperative
The tire pressure warning system may become inoperative in the follow-
ing conditions:
(When the condition be
comes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmit-
ters are used.
●If the ID code on the tire pressure warning valves and transmitters is
not registered.
●If electronic devices or facilities using similar radio wave frequencies
are nearby.
●If a large metallic object which can interfere with signal reception is
put in the trunk.
●If a radio set at similar frequencies is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings.
●If non-genuine Toyota wheels are used.
●If tire chains are used.
●If the spare tire (except compact spare tire) is in a location subject to
poor radio wave signal reception.
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or
higher.
■If the tire pressure warning light comes on after blinking for 1
minute frequently
If the tire pressure warning light comes on after blinking for 1 minute fre-
quently when the “ENGINE START STOP” switch or the engine switch is
set at ON, have it checked by your Toyota dealer.
Even if you use genuine wheels, the tire pressure warning system may
not work properly with some types of tires.
Pushing the tire pressure reset switch should not turn off the tire pres-
sure warning light.
